A non-sterile, noninvasive electrical conductor designed to conduct electrical signals, generated by a patient's heart, from the skin surface to an electrocardiograph (ECG) monitoring device, via an ECG lead wire (not included). It is typically a disk-like electrode that is affixed to the skin with a special adhesive, adhesive tape, or suction mechanism; a conductive gel may be pre-applied and it may include a skin cleaning wipe to assist electrical connection. Electrocardiography is usually performed using a set of electrodes (e.g., 10) connected to appropriate leads and cables. This is a single-use device.